JP2009117844A - 基板処理チャンバのためのマルチポートポンピングシステム - Google Patents
基板処理チャンバのためのマルチポートポンピングシステム Download PDFInfo
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Abstract
【解決手段】半導体製造チャンバから流体をパージングする排気フォアライン60は、上記チャンバに独立して結合される第1のポート、第2のポート及び第3のポートを含むことができる。第1のインターフェースポート54、第2のインターフェースポート56及び第3のインターフェースポート58を有する基板チャンバを含む半導体製造システム100も提供される。このシステムは、第1のポート、第2のポート及び第3のポートを有するマルチポートフォアラインをも含むことができ、上記第1のフォアラインポートは、上記第1のインターフェースポートに結合され、第2、第3も同様になされる。このシステムは、更に、上記マルチポートフォアラインに結合される排気真空を含むことができる。
【選択図】図4
Description
Claims (15)
- 基板処理システムにおいて、
基板処理領域を内側に有した基板処理チャンバと、
上記チャンバの上記基板処理領域において基板処理中に基板を固定するために上記基板処理チャンバ内に配置される基板受け表面を有する基板支持体と、
ターボ分子ポンプ、上記ターボ分子ポンプを上記チャンバから流体的に分離するために閉じることのできるゲート弁及び排気フォアラインに流体的に結合される第1のガス排気通路及び第2のガス排気通路を備えるガス排気システムと、
を備え、
上記第1のガス排気通路は、上記ターボ分子ポンプを通してポンピングされたガスを上記基板処理チャンバから上記排気フォアラインへと排気するため上記基板処理システムに配置されたポートに結合される第1の導管を含み、
上記第2の排気通路は、上記ゲート弁が閉じられて上記ターボ分子ポンプを上記チャンバから流体的に分離するとき、ガスを上記基板処理チャンバから上記排気フォアラインへと排気するため上記基板処理システムに配置された第2のインターフェースポート及び第3のインターフェースポートに結合される少なくとも第2の導管及び第3の導管を含む、
基板処理システム。 - 上記第2のガス排気通路は、上記ゲート弁が閉じられ上記ターボ分子ポンプを上記チャンバから流体的に分離するとき、ガスを上記基板処理チャンバから上記排気フォアラインへと排気するために上記基板処理システムに配置された第4のインターフェースポートに結合される第4の導管を含む、請求項1に記載の基板処理システム。
- 上記第2のインターフェースポート、第3のインターフェースポート及び第4のインターフェースポートは、実質的に同じ平面に配置され、且つ互いにほぼ90度離間されている、請求項2に記載の基板処理システム。
- 上記第2の導管、第3の導管及び第4の導管は、単一交差継手において一緒に流体的に結合される、請求項3に記載の基板処理システム。
- 上記ガス排気システムは、上記第1の導管、第2の導管、第3の導管及び第4の導管の下流で上記排気フォアラインに作動的に結合されるラフィングポンプを更に備える、請求項3に記載の基板処理システム。
- 上記第1のインターフェースポート、第2のインターフェースポート、第3のインターフェースポート及び第4のインターフェースポートは、上記基板支持体の下方に配置される、請求項3に記載の基板処理システム。
- 基板処理チャンバを洗浄するための方法において、
上記チャンバの外側でプラズマに曝されるフッ素含有化合物を含む活性化洗浄ガス混合物を上記チャンバ内へ導入するステップと、
上記洗浄混合物の少なくとも一部分を上記チャンバの残留物質と反応させるステップと、
流体的に一緒に結合され且つ真空ポンプに作動的に結合される複数の排気ポートを通して上記反応チャンバから上記洗浄混合物を除去するステップと、
を備えた方法。 - 上記活性化フッ素は、リモートプラズマシステムにおけるリモートプラズマに対して曝されることにより活性化される、請求項7に記載の方法。
- 上記活性化洗浄ガス混合物は、NF3を含み、上記活性化洗浄ガスは、フッ素イオン及びフッ素遊離基を含み、10から15SLMの間の流量で上記チャンバ内へ導入され、チャンバ圧力は、9トール以下に維持される、請求項8に記載の方法。
- 基板処理チャンバと、ターボ分子ポンプ、上記ターボ分子ポンプを上記基板処理チャンバから流体的に分離するために閉じることのできるゲート弁及び排気フォアラインに流体的に結合される第1のガス排気通路及び第2のガス排気通路を備えるガス排気システムとを有する基板処理システムを動作するための方法において、
基板を上記チャンバ内へ移送し、上記基板が上記チャンバ内に配置されている間に1つ以上の処理ガスを上記チャンバへ導入することにより上記基板に対する基板処理動作を行い、上記ターボ分子ポンプの下流で第1のポートにおいて上記チャンバに流体的に結合される第1の排気通路を通して上記ターボ分子ポンプでもって上記1つ以上の処理ガスを上記チャンバから上記排気フォアラインへと排気するステップであって、上記基板処理動作中に望まれない残留物質が上記基板処理チャンバの内部表面に形成されていくステップと、
上記基板を上記チャンバの外へ移送し、上記ターボ分子ポンプを上記チャンバから分離するため上記ゲート弁を閉じ、上記チャンバへ活性化洗浄ガス混合物を導入し且つ上記洗浄混合物の少なくとも一部分を上記残留物質と反応させ、上記ターボ分子ポンプの上流で上記チャンバに流体的に結合される少なくとも第2のポート及び第3のポートを有する第2の排気通路を通して上記チャンバから上記洗浄ガス混合物を除去することによりチャンバ洗浄動作を行うステップと、
を備えた方法。 - 上記第2の排気通路は、上記ターボ分子ポンプの上流で上記チャンバに流体的に結合される第4のポートを含む、請求項10に記載の方法。
- 上記活性化洗浄ガス混合物を除去するステップは、上記チャンバに作動的に結合されるリモートプラズマシステムにおいて生成されたフッ素イオン及びフッ素遊離基を含む、請求項11に記載の方法。
- 上記フッ素イオン及びフッ素遊離基は、NF3から生成される、請求項12に記載の方法。
- 基板処理チャンバから流体をパージするための排気フォアラインにおいて、上記チャンバに独立して結合される第1のポート、第2のポート及び第3のポートを備える排気フォアライン。
- 上記第1のポート、第2のポート及び第3のポートは、出口真空に結合される単一ポートへと合流接続される、請求項14に記載の排気フォアライン。
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EP (1) | EP2058843A3 (ja) |
JP (1) | JP2009117844A (ja) |
KR (2) | KR101011097B1 (ja) |
CN (1) | CN101429651B (ja) |
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- 2008-11-06 SG SG200808262-0A patent/SG152213A1/en unknown
- 2008-11-07 TW TW97143182A patent/TW200936886A/zh unknown
- 2008-11-07 JP JP2008287017A patent/JP2009117844A/ja active Pending
- 2008-11-07 KR KR1020080110390A patent/KR101011097B1/ko not_active IP Right Cessation
- 2008-11-10 CN CN2008101754829A patent/CN101429651B/zh not_active Expired - Fee Related
- 2008-11-10 EP EP20080168784 patent/EP2058843A3/en not_active Withdrawn
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Also Published As
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US20090120464A1 (en) | 2009-05-14 |
KR20100121577A (ko) | 2010-11-18 |
TW200936886A (en) | 2009-09-01 |
EP2058843A2 (en) | 2009-05-13 |
EP2058843A3 (en) | 2012-04-18 |
CN101429651A (zh) | 2009-05-13 |
SG152213A1 (en) | 2009-05-29 |
KR101011097B1 (ko) | 2011-01-25 |
KR101135811B1 (ko) | 2012-04-16 |
US7964040B2 (en) | 2011-06-21 |
KR20090048356A (ko) | 2009-05-13 |
CN101429651B (zh) | 2013-04-24 |
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